{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "RNA", "DNA", "cell line", "cell type"], "input": "The negative-acting sequences repress enhancer activity in a position- and orientation-independent manner at the pre-B-cell stage ."}
{"protein": [], "RNA": [], "DNA": ["negative-acting sequences"], "cell line": [], "cell type": []}